The integrating factor of the differential equation (dy/dx) + 2y = si…

The given differential equation is 

(dy/dx) + 2y = sinx

This equation is of the form dy/dx +py =Q    (where p= 2 and Q = sin x)

Now, I.F. = e^∫pdx

so, I.F. = e^∫2dx

hence I.F. = e^2x